Percutaneous dilatational device
AssigneeLifeserve Innovations, LLC
InventorsRichard L. Arlow, Zachary W. Bloom, Brian Hewko
Life of this patent
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Abstract
The present invention relates to a medical device for performing surgery in the body using a percutaneous dilatational procedure, one embodiment of which is a percutaneous dilatational tracheostomy (PDT) device having a dilator with a non-uniform surface profile that is optimized to the relevant anatomy in order to reduce, uniformly distribute, and ensure uniform, or constant temporal derivative of, dilatational force throughout dilation. This serves to reduce trauma to the patient, specifically producing a reduction of anterior tracheal wall compression, posterior wall laceration/perforation, and tracheal ring fracture that may subsequently lead to subglottic suprastomal stenosis.
Claims22
A device for providing an airway through the pretracheal fascia and tracheal wall of a patient that reduces trauma to tracheal smooth muscle, cartilaginous rings, and/or pretracheal fascia, and/or adjacent anatomical structures, said device comprising:
- a. a distal region having a generally circular cross-sectional profile and a tip;
- b. an intermediate region located proximally to said distal region and having a dilatational surface profile including a cross-section shaped in the form of a generally transverse-biased ovaloid;
- c. a proximal region located at the proximal end of said device and including a dilatational surface profile analogous to a tracheostomy tube;
- and,
- d. a passageway extending through said device defined by a wall having a thickness, said passageway opening at said tip to accommodate a guide member.
A device for providing an airway through the pretracheal fascia and tracheal wall of a patient that reduces trauma to tracheal smooth muscle, cartilaginous rings, and/or pretracheal fascia, and/or adjacent anatomical structures, said device comprising:
- a. a narrower distal region having a tip;
- b. a wider proximal region, said device extending along a length from said narrower distal region to said wider proximal region, said length comprising a non-uniform surface geometry including varying cross-sectional profiles, said device generally tapering outwardly as it extends from said narrower distal region along said length to said wider proximal region;
- and,
- c. a passageway extending through said device defined by a wall having a thickness, said passageway opening at said tip to accommodate a guide member.
Dependencies are inferred from the claim text.